90174242 has 8 divisors (see below), whose sum is σ = 135625116. Its totient is φ = 44965872.

The previous prime is 90174229. The next prime is 90174277. The reversal of 90174242 is 24247109.

It can be written as a sum of positive squares in 2 ways, for example, as 89094721 + 1079521 = 9439^2 + 1039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59693 + ... + 61184.

Almost surely, 2^90174242 is an apocalyptic number.

90174242 is a deficient number, since it is larger than the sum of its proper divisors (45450874).

90174242 is a wasteful number, since it uses less digits than its factorization.

90174242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121252.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 90174242 is about 9496.0118997398. The cubic root of 90174242 is about 448.4294915274.

The spelling of 90174242 in words is "ninety million, one hundred seventy-four thousand, two hundred forty-two".